A power supply that can deliver enough power to, well, power up to four GeForce RTX 5090 graphics cards is not something you see every day. At Computex 2026, that's exactly what ASUS has introduced with its new ROG Thor 3000W Titanium III Edition 20 PSU. This 3000W monster, and yes, that's not a typo, was created as part of ROG's 20th anniversary line-up, and one of the key reasons it can power up to four RTX 5090 cards comes down to it leveraging server-grade GaN MOSFET components.

Now, with power delivery to high-end GeForce RTX 50 Series GPUs using the 12V-2x6 PCIe power connector being a notable and understandable concern thanks to several cases of cables overheating and melting, and even damaging components, increasing this to four might be a cause for concern for extreme next-generation builds with the ROG Thor 3000W Titanium III Edition 20 PSU.
Thankfully, that's not the case, thanks to the inclusion of ASUS's new safety-focused, patented ROG Equalizer cables and GPU-First Intelligent Voltage Stabilizer technology, which ensure safer operation with up to 45% improved voltage stability during peak gaming workloads.
Now, for those looking to pair this impressive PSU with a single GPU, which probably covers most gaming builds out there, the good news is that it sports a dual-voltage design that lets you switch between 3000W (230V) and the more down-to-earth but still up there 1600W (1150V). In both modes, you still benefit from the server-grade design and components. And really, as a premium PSU, part of the appeal here is the 20th-anniversary design, which includes the stylish black-and-gold look of the full ROG Edition 20 line-up.
One cool aesthetic feature of this premium PSU is that the integrated OLED display is detachable and magnetic, and includes an extender. So even if you can't see the PSU, you'll still be able to use its OSD features.










